The Figure Shows Six Pairwise Genetic Distances Among Four Species

question 46

Multiple Choice

The figure shows six pairwise genetic distances among four species (A, B, C, and D) . Which of the following would be grouped as sister taxa on a tree constructed using distance measurements? A


B

• A) Species A and B
• B) Species A and D
• C) Species B and C
• D) Species B and D

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Definitions:

Function

A mathematical relationship in which each input value has exactly one output value.

Horizontal Line Test

A method used to determine if a function is injective or one-to-one, based on whether any horizontal line intersects the graph more than once.

One-to-One

A function for which every element of the range of the function corresponds to exactly one element of the domain.

Inverse Function

A function that reverses the operation of a given function, swapping the roles of its inputs and outputs.